Priefert, E. Playgrounds and Recreation Spaces.
Chicago Style (17th ed.) CitationPriefert, Ernst. Playgrounds and Recreation Spaces.
MLA引文Priefert, Ernst. Playgrounds and Recreation Spaces.
警告：這些引文格式不一定是100％准確.
APA引文
Priefert, E. Playgrounds and Recreation Spaces.
Chicago Style (17th ed.) CitationPriefert, Ernst. Playgrounds and Recreation Spaces.
MLA引文Priefert, Ernst. Playgrounds and Recreation Spaces.